High Tensile Indented Chamfered Hex Washer Head Bolt

302HQ Stainless Steel Hex Washer Bolt with A4-80 Tensile Strength and 10.9KN Bearing Value

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Need High Tensile Hex Bolts That Won't Fail Under Extreme Automotive Stress?

Our 302HQ indented chamfered hex washer head bolts deliver A4-80kgf/mm² tensile strength with 10.9KN bearing capacity, specifically engineered for automotive applications requiring superior vibration resistance and load distribution. Manufactured with multi-blow header technology and ISO-compliant inspection using 2.5D projectors and ring gages, we guarantee dimensional precision for critical automotive assembly. Contact us for custom specifications and salt spray test data for your automotive fastening requirements.

With 45 years of fastener manufacturing expertise, we ensure every indented chamfered hex washer head bolt meets stringent ISO Working Instruction compliance through comprehensive inspection protocols. Our quality assurance process employs advanced measurement tools including calipers, protrusion-height gages, micrometers, and 2.5D/2D projectors to verify critical dimensions: head diameter and height, hex flat and corner measurements, washer diameter and height, thread length, major and minor diameters, thread angle, pitch, and ring gage GO/NO GO testing. This meticulous inspection methodology guarantees consistent dimensional accuracy and reliable performance for OEM manufacturers and aftermarket customers requiring high-quality stainless steel fasteners for specialized industrial applications.

Indented Chamfered Hex Washer Head Bolt - Indented Chamfered Hex Washer Head Bolt w/ High Tensile Strength
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Indented Chamfered Hex Washer Head Bolt

HB003-150119-1

Process: Using multi blow header for head formation before threading, and then acid washing
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector
Measurement Points: Head diameter, Head height, Across the flat and corner of the hex, Washer diameter, Washer height, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Ring gage GO/NO GO

Features

  • A4-80kgf/mm2
  • Bearing Value: 10.9KN

Specification

  • Item Specification: M6*30
  • Item Material: 302HQ